The Register reports HP has pushed its Memristor technology to equal the switching speed and endurance shown by current NAND flash memory cells. The company expects its technology will be capable of beating NAND flash within a couple of years.
HP thinks it can build a competing Memristor device with a density of 20GB/sq in to flash chips by 2013, which it reckons will be double what flash can do. HP thinks Memristor technology is better than PCM as well, since PCM involves heating cells to change their physical state - requiring more power - and has a slower switching speed.
If HP is right and it can actually build Memristor chips in large capacities and large numbers and at an acceptable price, then it could blow Numonyx, Samsung, Toshiba and SanDisk's flash businesses and PCM follow-on efforts to blazes, and make a killing in license fees.